One Line: Kolam & Knots

A quiet puzzle ritual: connect the paths, watch each pattern bloom, and return for a fresh daily. Begin free, with no ads or account.

Tap the spaces between dots. Bend the paths. Watch a pattern become one.

One Line is a calm puzzle game inspired by Tamil kolam, Chokwe sona and Celtic knotwork. It uses the mathematics of mirror curves to turn simple choices into intricate patterns. Solve a puzzle and see it bloom in worlds of thread, paper and rain.

• 200 puzzles across five chapters: Kolam, Petals, Sona, Celtic and Masters • A fresh daily puzzle following your local calendar date • Visual tutorials and hands-on practice for each puzzle rule • Pinwheels, beads, petals, regions and colored lines, introduced as you play • Unlimited undo and hints, with room to find your own way • A personal Collection of completed patterns and a Profile of your journey • Share your finished artwork as a keepsake, sized for a Post or Story • Spoiler-free daily sharing, with an optional artwork reveal • A free Margazhi season from December 16 to January 14 • Optional tracing with a finger or Apple Pencil on iPad • Adjustable sound, haptics and quiet ambient audio • VoiceOver controls, larger text and Reduce Motion support • No countdowns, lives, ads or account; optional iCloud progress sync

All 40 Chapter 1 puzzles, today’s daily and Margazhi seasonal puzzles are free. One purchase unlocks Chapters 2–5 and the past daily archive. There is no subscription.